相关疑难解决方法(0)

设置:

我正在使用Reactive Banana和OpenGL,我有一个我想要旋转的装备.我有以下信号:

bTime :: Behavior t Int -- the time in ms from start of rendering
bAngularVelosity :: Behavior t Double -- the angular velocity
                                      -- which can be increase or
                                      -- decreased by the user
eDisplay :: Event t ()     -- need to redraw the screen
eKey :: Event t KeyState   -- user input

最终,我需要计算bAngle哪个过去到绘图函数:

reactimate $ (draw gears) <$> (bAngle <@ eDisp)

角度很容易计算: a = ?v(t) dt

问题:

我想我想要做的是a = …